[flexcoders] popup is taller than browser window/ vertical scroll bar??

[pfk456cr]

i have some popups that have their height property greater than the
height of the browser window.  the close button on the popup is
getting clipped and setting verticalScrollPolicy on doesn't function.
 anyone have any ideas how i can force the popup (based on canvas) to
have vertical scroll bars that function, or any other good ideas?  thanks.